Gumball dispensing machine



FIG. 1 is a plan view of a gumball dispensing machine, showing the new design;

FIG. 2 is a front view thereof;

FIG. 3 is a right side elevational view thereof, the other side being a mirror image thereof;

FIG. 4 is a back view thereof; and,

FIG. 5 is a top view thereof. 

The ornamental design for a gumball dispensing machine, as shown and described. 